Check valve hole site detection device

Abstract

The utility model relates to the technical field of check valves, and discloses a check valve hole site detection device, which comprises a main box body, a screw rod is rotatably arranged in the main box body, two movable detection blocks are movably connected to the screw rod, a clamping assembly is arranged in the middle of the movable detection blocks, and the clamping assembly is movably connected to the screw rod. According to the utility model, through the arrangement of the detection rod, when the hole is in an offset state, one point of the rubber head is driven to firstly contact with the edge of the hole, so that the detection rod deflects by taking the sphere as the circle center, and the top part of the detection rod deflects and abuts against the trigger block; the warning device on the trigger block prompts that the position of the current valve hole deflects, when the hole does not deflect, the edge of the rubber head can make contact with the edge of the hole at the same time, at the moment, the detection rod does not deflect, a gap exists between the top of the detection rod and the diameter of the trigger block, and the warning device does not prompt, so that whether the hole position of the valve is correct or not is detected.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a hole position detection device for check valves. Background Art

[0002] A check valve is a valve that automatically opens and closes its disc based on the flow of the medium itself, preventing backflow. It is also known as a non-return valve, one-way valve, or back-pressure valve. It is an automatic valve whose primary functions are to prevent backflow, reverse rotation of pumps and drive motors, and the release of container media. A check valve allows the medium to flow in only one direction and is typically operated automatically.

[0003] The check valve core on the check valve is pressed against the valve flow hole by an elastic part to allow the medium to flow in one direction. However, if the center line of the check valve core and the flow hole are not on the same line, the offset is large, and leakage and backflow will occur. If the offset is small, the impact force of the medium on the check valve core is uneven. The side with greater impact force is flushed for a long time, which will not only cause the elasticity of the elastic part on this side to decrease, but also cause inconsistent wear and tear of the check valve core, thereby causing backflow leakage.

[0004] Therefore, it is necessary to ensure that the center line of the check valve core and the flow hole are in the same position, that is, it is necessary to detect whether the flow hole of the valve and the check valve core hole of the valve cover are in the same position, so as to judge whether the valve is qualified. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a check valve hole position detection device, which has the advantage of detecting the check valve hole position.

[0006] In order to achieve the above-mentioned purpose of higher installation stability, the utility model provides the following technical solution: comprising a main box body, wherein a screw rod is rotatably provided inside the main box body, and two movable detection blocks are movably connected to the screw rod;

[0007] A clamping assembly is provided in the middle of the movement detection block, wherein a detection assembly is also provided inside the movement detection block on the upper side;

[0008] The clamping assembly includes a main clamping plate and an auxiliary clamping plate hinged to each other, both of which are mounted on the movement detection block through springs;

[0009] The detection assembly includes a slider, a detection rod and a trigger block. The slider and the trigger block are slidably connected in the moving detection block, and the detection rod is movably installed in the slider.

[0010] Preferably, the detection assembly further comprises a hydraulic cylinder, which is mounted on the top of the movable detection block, and a telescopic rod on the hydraulic cylinder is mounted on the sliding block.

[0011] Preferably, the connection between the detection rod and the slider is a spherical arrangement, the trigger block is installed above the slider, and the detection rod extends upward to the trigger block.

[0012] Preferably, the detection rod extends downward, and a rubber head is provided at the end thereof. The rubber head is in an inverted cone shape, and the diameter of the bottom circular surface thereof is smaller than the diameter of the detection rod.

[0013] Preferably, the middle of the movement detection block is hollow, and protruding blocks are fixed on both sides thereof, and the clamping assembly is installed on the protruding blocks.

[0014] Preferably, the main clamping plate is installed on the raised block through a rotating shaft, and the auxiliary clamping plate is installed on the main clamping plate through a rotating shaft. Two first springs are provided inside the raised block and are connected to the main clamping plate. A second spring is installed in the moving detection block and is connected to the auxiliary clamping plate.

[0015] Preferably, at least two buckles are fixed on one end surface of the movement detection block, and a raised ring is provided on the buckles.

[0016] Preferably, the bottom of the screw rod is mounted on the motor, the movement detection block is threadedly mounted on the screw rod, and an outer cover is rotatably mounted on the main box body.

[0017] A check valve comprises a valve body and a valve cover, wherein a valve center hole is provided inside the valve body, a flow hole is installed inside the valve cover via an abutment spring, and the flow hole is slidably connected inside the valve cover.

[0018] Compared with the prior art, the present invention provides a check valve hole position detection device with the following beneficial effects:

[0019] 1. The check valve hole position detection device, through the setting of the detection rod, when the hole is in an offset state, will drive one point of the rubber head to contact the edge of the hole first, causing the detection rod to deflect with its spherical body as the center of the circle, and the deflection of the top part will abut against the trigger block, thereby prompting the warning device on the trigger block that the current valve hole position is deflected. When the hole is not deflected, the edge of the rubber head will contact the edge of the hole at the same time. At this time, the detection rod will not deflect, and there will be a gap between its top and the diameter of the trigger block. The warning device will not prompt, so as to detect whether the valve hole position is correct.

[0020] 2. The check valve hole position detection device, through the setting of the clamping assembly, allows the valve to be placed vertically in the clamping assembly and then initially fixed by a snap. Since the surface of the valve is spherical, after the valve enters the clamping assembly, the auxiliary clamping plate with smaller elastic force moves inward a greater distance, while the main clamping plate moves inward a smaller distance, causing the clamping assembly to appear inwardly buckled, which can adapt to spherical valves and is more secure than flat clamping.

[0021] 3. The check valve hole position detection device can position the valve through the setting of the buckle. That is, by clamping the flange connection hole on the valve on the buckle, the center line of the valve can be kept consistent with the center line of the slider, making the hole detection more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the half-section structure of the utility model;

[0024] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of the mobile detection block of the utility model;

[0026] Figure 5 This is a partial structural diagram of the mobile detection block of the utility model;

[0027] Figure 6 This is a schematic diagram of the internal structure of the mobile detection block of the utility model;

[0028] Figure 7 This is a schematic diagram of the check valve structure of the utility model.

[0029] In the figure: 10, main box body; 101, screw rod; 11, outer cover; 20, movable detection block; 201, buckle; 21, raised block; 30, clamping assembly; 301, main clamping plate; 302, auxiliary clamping plate; 40, detection assembly; 401, slider; 402, hydraulic cylinder; 403, detection rod; 404, trigger block; 405, rubber head; 50, valve body; 501, valve center hole; 51, valve cover; 511, flow hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figure 1-7 As shown, it includes a main box body 10, a screw rod 101 is rotatably provided inside the main box body 10, two mobile detection blocks 20 are movably connected to the screw rod 101, the bottom of the screw rod 101 is installed on the motor, and the mobile detection block 20 is threadedly installed on the screw rod 101. An outer cover 11 is also rotatably installed on the main box body 10, and the thread directions of the two mobile detection blocks 20 are opposite, so that when the screw rod 101 rotates, the mobile detection blocks 20 will move in opposite or reverse directions at the same time.

[0032] A clamping assembly 30 is provided in the middle of the mobile detection block 20, and a detection assembly 40 is also provided inside the upper mobile detection block 20. Two clips 201 are fixed on the end face of one side of the mobile detection block 20, or three, for three-point positioning of the center of the circle. A raised ring is provided on the clip 201. The valve can be positioned by setting the clip 201, that is, by clamping the flange connection hole on the valve on the clip 201, the center line of the valve can be kept consistent with the center line of the slider 401, making the detection of the hole more accurate.

[0033] The clamping assembly 30 includes a main clamping plate 301 and a sub-clamping plate 302 which are hinged to each other, and the two are mounted on the mobile detection block 20 through a spring. The middle of the mobile detection block 20 is hollow, and protruding blocks 21 are fixed on both sides. The clamping assembly 30 is mounted on the protruding blocks 21, and the main clamping plate 301 is mounted on the protruding blocks 21 through a rotating shaft, and the sub-clamping plate 302 is mounted on the main clamping plate 301 through a rotating shaft. Two first springs are arranged inside the protruding block 21 and are connected to the main clamping plate 301. A second spring is installed in the mobile detection block 20 and is connected to the sub-clamping plate 302. The elasticity of the first spring at the holding plate 301 is greater than that of the second spring, that is, the clamping force of the main clamping plate 301 is greater than the clamping force of the auxiliary clamping plate 302. Therefore, through the setting of the clamping assembly 30, the valve is placed vertically in the clamping assembly 30, and then preliminarily fixed by the buckle 201. Since the surface of the valve is spherical, the auxiliary clamping plate 302 with smaller elastic force moves inward a greater distance after the valve enters the clamping assembly 30, and the main clamping plate 301 moves inward a smaller distance, so that the clamping assembly 30 appears inwardly buckled, which can adapt to spherical valves and is more secure than flat clamping.

[0034] The detection assembly includes a slider 401, a detection rod 403 and a trigger block 404. The slider 401 and the trigger block 404 are slidably connected in the mobile detection block 20. The detection rod 403 is movably installed in the slider 401. The detection assembly also includes a hydraulic cylinder 402. The hydraulic cylinder 402 is installed on the top of the mobile detection block 20. The telescopic rod on the hydraulic cylinder 402 is installed on the slider 401. The detection assembly is controlled to move up and down by the hydraulic cylinder 402. The connection between the detection rod 403 and the slider 401 is a spherical setting. The trigger block 404 is installed above the slider 401. The detection rod 403 extends upward to the trigger block 404. The detection rod 403 extends downward, and a rubber head 405 is provided at the end thereof. The rubber head 405 is in an inverted cone shape, and the straight round surface of the bottom thereof is The diameter is smaller than the diameter of the detection rod 403. Through the setting of the detection rod 403, when it moves to abut against the middle hole of the valve, the rubber head 405 will gradually contact the edge of the hole. When the hole is in an offset state, one point of the rubber head 405 will first contact the edge of the hole, and then the rubber head 405 will continue to move, which will cause the detection rod 403 to deflect with its spherical body as the center of the circle, and the deflection of the top part will abut against the trigger block 404, thereby prompting the current valve hole position to be deflected through the warning device on the trigger block 404. When the hole is not deflected, the edge of the rubber head 405 will simultaneously contact the edge of the hole. At this time, the detection rod 403 will not deflect, and there is a gap between its top and the diameter of the trigger block 404, and the warning device will not give a prompt.

[0035] A check valve includes a valve body 50 and a valve cover 51 . A valve center hole 501 is provided inside the valve body 50 . A flow hole 511 is installed inside the valve cover 51 via an abutment spring. The flow hole 511 is slidably connected to the valve cover 51 .

[0036] Working principle: When in use, the valve body 50 and the valve cover 51 are separated, and the lower flow hole 511 is removed, wherein the flange port of the valve body 50 is upward and placed vertically in the movable detection block 20 on the lower side, and the flange connection port is clamped on the buckle 201, the flange port of the valve cover 51 is downward, and the flange connection port is also clamped on the buckle 201, and then the motor is started to rotate the screw rod 101, so that the movable detection blocks 20 on both sides move inward until the buckles 201 on both sides abut against each other, that is, stop rotating, and then start the hydraulic cylinder 402 to drive the slider 401 to move downward, thereby driving the detection rod 403 and the trigger block 404 to move downward. The detection rod 403 moves downward and first enters the valve cover 51. When the middle hole of the valve cover 51 is in an offset state, its edge will abut the detection rod 403 and deflect, causing it to contact the trigger block 404, thereby stopping the hydraulic cylinder 402 and reminding the staff that the current valve cover 51 is unqualified.

[0037] When the hole of the valve cover 51 is normal and the valve center hole 501 of the valve body 50 is in a deflected state, the rubber head 405 will pass over the valve cover 51 and enter the valve body 50. When it contacts the edge of the deflected valve center hole 501, the detection rod 403 will be deflected, and the staff will be reminded as described above.

[0038] If the position of the valve center hole 501 is normal, the rubber head 405 will directly and vertically enter the valve center hole 501, and the detection rod 403 will not deflect. At this time, the valve is normal.

[0039] In summary, the check valve hole position detection device, through the setting of the detection rod 403, when the hole is in an offset state, it will drive one point of the rubber head 405 to contact the edge of the hole first, causing the detection rod 403 to deflect with its spherical body as the center of the circle, and the partial deflection of the top will abut against the trigger block 404, thereby prompting the current valve hole position to be deflected through the warning device on the trigger block 404. When the hole is not deflected, the edge of the rubber head 405 will contact the edge of the hole at the same time. At this time, the detection rod 403 will not deflect, and there will be a gap between its top and the diameter of the trigger block 404, and the warning device will not prompt, so as to detect whether the hole position of the valve is correct; through the clamping group The arrangement of the component 30 allows the valve to be placed vertically in the clamping assembly 30 and then preliminarily fixed by the buckle 201. Since the surface of the valve is spherical, the auxiliary clamping plate 302 with smaller elastic force moves inward a greater distance after the valve enters the clamping assembly 30, and the main clamping plate 301 moves inward a smaller distance, so that the clamping assembly 30 appears inwardly buckled, which can adapt to spherical valves and is more secure than flat clamping. The arrangement of the buckle 201 allows the valve to be positioned, that is, by clamping the flange connection hole on the valve on the buckle 201, the center line of the valve can be kept consistent with the center line of the slider 401, making the hole detection more accurate.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A check valve hole position detection device, comprising a main housing (10), characterized in that: A screw rod (101) is rotatably provided inside the main box (10), and two movable detection blocks (20) are movably connected to the screw rod (101); A clamping assembly (30) is provided in the middle of the movement detection block (20), wherein a detection assembly (40) is further provided inside the movement detection block (20) on the upper side; The clamping assembly (30) comprises a main clamping plate (301) and a secondary clamping plate (302) hinged to each other, both of which are mounted on the moving detection block (20) via a spring; The detection assembly comprises a slider (401), a detection rod (403) and a trigger block (404); the slider (401) and the trigger block (404) are slidably connected in the mobile detection block (20); and the detection rod (403) is movably installed in the slider (401).

2. A check valve hole position detection device according to claim 1, characterized in that: The detection assembly further comprises a hydraulic cylinder (402), wherein the hydraulic cylinder (402) is mounted on the top of the mobile detection block (20), and a telescopic rod on the hydraulic cylinder (402) is mounted on the sliding block (401).

3. The check valve hole position detection device according to claim 1, characterized in that: The connection between the detection rod (403) and the slider (401) is a spherical arrangement, the trigger block (404) is installed above the slider (401), and the detection rod (403) extends upward to the trigger block (404).

4. A check valve hole position detection device according to claim 3, characterized in that: The detection rod (403) extends downward, and a rubber head (405) is provided at the end thereof. The rubber head (405) is arranged in an inverted cone shape, and the diameter of the circular surface at the bottom thereof is smaller than the diameter of the detection rod (403).

5. The check valve hole position detection device according to claim 1, characterized in that: The middle of the movement detection block (20) is hollow, and protruding blocks (21) are fixed on both sides thereof, and the clamping assembly (30) is mounted on the protruding blocks (21).

6. A check valve hole position detection device according to claim 5, characterized in that: The main clamping plate (301) is mounted on the protruding block (21) via a rotating shaft, and the auxiliary clamping plate (302) is mounted on the main clamping plate (301) via a rotating shaft. Two first springs are provided inside the protruding block (21) and are connected to the main clamping plate (301). A second spring is installed inside the moving detection block (20) and is connected to the auxiliary clamping plate (302).

7. The check valve hole position detection device according to claim 1, characterized in that: At least two buckles (201) are also fixed on one end surface of the movement detection block (20), and a raised ring is provided on the buckles (201).

8. The check valve hole position detection device according to claim 1, characterized in that: The bottom of the screw rod (101) is mounted on the motor, the movement detection block (20) is threadedly mounted on the screw rod (101), and an outer cover (11) is rotatably mounted on the main box body (10).

9. A check valve, characterized in that: The valve body (50) comprises a valve body (50) and a valve cover (51). A valve center hole (501) is provided inside the valve body (50). A flow hole (511) is installed inside the valve cover (51) via an abutting spring. The flow hole (511) is slidably connected inside the valve cover (51).

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